CN1166203C - Method and apparatus for encoding video signal - Google Patents
Method and apparatus for encoding video signal Download PDFInfo
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- CN1166203C CN1166203C CNB981028039A CN98102803A CN1166203C CN 1166203 C CN1166203 C CN 1166203C CN B981028039 A CNB981028039 A CN B981028039A CN 98102803 A CN98102803 A CN 98102803A CN 1166203 C CN1166203 C CN 1166203C
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/649—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding the transform being applied to non rectangular image segments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/112—Selection of coding mode or of prediction mode according to a given display mode, e.g. for interlaced or progressive display mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/20—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding
Abstract
Description
Claims (14)
- One kind be used in by selectively use one line by line or the interlace coded technology in the video coder of encoding video signal, be used for the texture information of this vision signal is carried out Methods for Coding, this vision signal comprises about the texture information of each macro block and shape information, each macro block has M * M pixel and can be divided into the DCT piece of size such as P, M and P are respectively positive integer, and this method includes step:(a) shape information according to a relevant purpose macro block generates a coded block pattern Type C BPY figure place of predicting, wherein the CBPY figure place of this prediction is confirmed as the greater in the nontransparent DCT piece number in nontransparent DCT piece number and the interlaced type macro block in the macro block line by line, these are by respectively according to generating with the shape information that the interlace coded technology heavily forms relevant this purpose macro block line by line with interlacing type macro block line by line, the interlaced type macro block comprises napex-field and bottom-field DCT piece, each includes the alternate row of corresponding type of mb line by line, and each nontransparent DCT piece has a DCT block size and comprises at least one target pixel;(b) determine aspect the texture information in the coding target macroblock of any technology in line by line coding technology and the interlace coded technology more effective, thereby generate the DCT_ type information of this DCT_ type of expression;(c) in response to this DCT_ type, this texture information of relevant this purpose macro block of conversion, thus generation is through the texture information of conversion;(d), generate the CBPY information that is used for this purpose macro block according to this texture information through conversion;(e) expand processing by CBPY figure place execute bit, this CBPY information is encoded, thereby encoded CBPY information is provided according to this prediction; And(f) this texture information through conversion is encoded, thereby encoded texture information is provided;Wherein step (e) comprises following substep:(e1) the CBPY figure place of the figure place of this CBPY information and this prediction relatively;(e2) if the figure place of this CBPY information equals the CBPY figure place of this prediction, provide this CBPY information, thereby this encoded CBPY information is provided;(e3) if the figure place of this CBPY information is different from the CBPY figure place of this prediction, by one or more pseudo-position is added to the CBPY information that this CBPY information generates the expansion of the figure place with the CBPY figure place that equals this prediction, wherein can be arbitrary binary value and number that should the puppet position for the CBPY figure place of the figure place of this CBPY information and this prediction poor in each pseudo-position;(e4) encode to this CBPY information of providing from step (e2) or to the CBPY information that the result who meets step (e1) should expand, thereby this encoded CBPY information is provided.
- According to the process of claim 1 wherein by use a variable length decoding method to this CBPY information maybe the CBPY information of this expansion encode.
- 3. according to the method for claim 2, if wherein the CBPY information of this expansion is encoded in step (e4), step (e4) detects corresponding to the length in the VLC sign indicating number of the CBPY information of this expansion for a shortest VLC sign indicating number and this detected VLC sign indicating number this encoded CBPY information as this purpose macro block is provided.
- 4. according to the method for claim 3, wherein step (c) includes step:(c1) in response to this DCT_ type, heavily form this texture information and shape information;(c2) detect one or more nontransparent DCT piece of this purpose macro block according to the shape information of this heavy formation;(c3) will convert one group of DCT coefficient to corresponding to the texture information of this heavy formation of each nontransparent DCT piece;(c4) quantize this group DCT coefficient; And(c5) be provided for these DCT coefficients of organizing quantification of all nontransparent DCT pieces as texture information through conversion.
- 5. according to the method for claim 4, wherein step (d) includes step:(d1) check this each in the texture information of conversion organizes in the DCT coefficient that quantizes whether have at least one non-zero AC component; And(d2) generate the CBPY information with i bit data, i is the positive integer in 1 to the P scope, and whether the DCT coefficient of a pair of quantification that should organize of each bit representation comprises at least one non-zero AC component, meets the result of step (d1).
- 6. according to the method for claim 5, in step (a) before, also include step: generate encoded shape information by the input shape data of relevant this purpose macro block is encoded and generate the shape information of relevant this purpose macro block by this encoded shape information of decoding.
- 7. according to the method for claim 6, also include step: provide a data flow that includes the encoded information of encoded shape information, encoded CBPY information, DCT_ type information and encoded texture information sequence to be sent out.
- One kind be used in by selectively use one line by line or the interlace coded technology in the video coder of encoding video signal, be used for the texture information of a vision signal is carried out apparatus for encoding, this vision signal comprises about the texture information of each macro block and shape information, each macro block has M * M pixel and can be divided into the DCT piece of size such as P, M and P are respectively positive integer, and this device includes:The shape coding device is used for generating by shape information of this relevant purpose macro block is encoded an encoded shape information and generates the shape information of a reconstruct by this encoded shape information is decoded;Coded block pattern Type C BPY figure place prediction unit, the shape information that is used for this reconstruct of relevant this purpose macro block of basis generates the CBPY figure place of a prediction, wherein the CBPY figure place of this prediction is confirmed as the greater in the nontransparent DCT piece number in nontransparent DCT piece number and the interlaced type macro block in the macro block line by line, these line by line with interlacing type macro block be by respectively according to generating with the shape information that the interlace coded technology heavily forms relevant this purpose macro block line by line, each nontransparent DCT piece has a DCT block size and comprises at least one target pixel;The DCT_ type is determined device, be used for determining aspect line by line coding technology and the texture information of any technology of interlace coded technology in the coding target macroblock more effective, thereby generate the DCT_ type information of this DCT_ type of expression;Converting means is used in response to this DCT_ type, this texture information of relevant this purpose macro block of conversion, thus generation is through the texture information of conversion;The CBPY information generation device is used for according to this texture information through conversion, generates the CBPY information that is used for this purpose macro block;The CBPY information coding device is used for expanding processing by the CBPY figure place execute bit according to this prediction, this CBPY information is encoded, thereby encoded CBPY information is provided; AndThe texture information code device is used for this texture information through conversion is encoded, thereby encoded texture information is provided;Wherein, this CBPY information coding device comprises:Be used for the figure place of this CBPY information relatively and the CBPY figure place of this prediction, thereby this CBPY information be provided or the device of CBPY information of the expansion of the figure place with the CBPY figure place that equals this prediction that is generated is provided; AndBe used for to this CBPY information maybe the CBPY information of this expansion encode thereby the device of this encoded CBPY information be provided.
- 9. device according to claim 8, wherein this comparison means comprises:The device that is used for the CBPY figure place of the figure place of this CBPY information relatively and this prediction;If be used for the CBPY figure place that the figure place of this CBPY information equals this prediction, provide the device of this CBPY information;If be used for the CBPY figure place that the figure place of this CBPY information is different from this prediction, by one or more pseudo-position is added to the CBPY information that this CBPY information generates the expansion of the figure place with the CBPY figure place that equals this prediction, wherein each pseudo-position can be arbitrary binary value and should the puppet figure place be the device of the difference of the CBPY figure place of the figure place of this CBPY information and this prediction.
- 10. device according to claim 9, wherein by use a variable length decoding method to this CBPY information maybe the CBPY information of this expansion encode.
- 11. device according to claim 10, wherein, if it is the CBPY information of this expansion is encoded, detected and be provided as this encoded CBPY information of this purpose macro block for a shortest VLC sign indicating number corresponding to the length in the VLC sign indicating number of the CBPY information of this expansion.
- 12. device according to claim 11, wherein this texture information conversion equipment comprises:Be used for heavily forming the device of the shape information of this texture information and reconstruct in response to this DCT_ type;Be used for detecting the device of one or more nontransparent DCT piece of this purpose macro block according to the shape information of this heavy formation;Be used for to convert the device of one group of DCT coefficient to corresponding to the texture information of this heavy formation of each nontransparent DCT piece;Be used to quantize the device of this group DCT coefficient; AndBe used to be provided for DCT coefficient that these groups of all nontransparent DCT pieces quantize as device through the texture information of conversion.
- 13. device according to claim 12, wherein this CBPY information generation device comprises:Be used for checking whether this has the device of at least one non-zero AC component in the DCT coefficient that each group of the texture information of conversion quantizes; AndBe used to generate the device of the CBPY information with i bit data, i is the positive integer in 1 to the P scope, and whether the DCT coefficient of a pair of quantification that should organize of each bit representation comprises at least one non-zero AC component.
- 14. device according to claim 12 also comprises the device of a data flow that is used to provide the encoded information that includes encoded shape information, encoded CBPY information, DCT_ type information and encoded texture information sequence to be sent out.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/097,740 US6031872A (en) | 1998-06-16 | 1998-06-16 | Method and apparatus for encoding a video signal |
JP18250698A JP4086966B2 (en) | 1998-06-16 | 1998-06-29 | Video signal encoding device |
CNB981028039A CN1166203C (en) | 1998-06-16 | 1998-07-02 | Method and apparatus for encoding video signal |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/097,740 US6031872A (en) | 1998-06-16 | 1998-06-16 | Method and apparatus for encoding a video signal |
JP18250698A JP4086966B2 (en) | 1998-06-16 | 1998-06-29 | Video signal encoding device |
CNB981028039A CN1166203C (en) | 1998-06-16 | 1998-07-02 | Method and apparatus for encoding video signal |
Publications (2)
Publication Number | Publication Date |
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CN1241094A CN1241094A (en) | 2000-01-12 |
CN1166203C true CN1166203C (en) | 2004-09-08 |
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Application Number | Title | Priority Date | Filing Date |
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CNB981028039A Expired - Fee Related CN1166203C (en) | 1998-06-16 | 1998-07-02 | Method and apparatus for encoding video signal |
Country Status (3)
Country | Link |
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US (1) | US6031872A (en) |
JP (1) | JP4086966B2 (en) |
CN (1) | CN1166203C (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100281463B1 (en) * | 1998-03-14 | 2001-02-01 | 전주범 | Sub-data encoding apparatus in object based encoding system |
US6195088B1 (en) * | 1998-12-04 | 2001-02-27 | France Telecom | Method and system for controlling multimedia streams using dynamic prototypes |
KR100716440B1 (en) * | 1999-01-21 | 2007-05-10 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Method and arrangement for encoding video images |
EP1137289B1 (en) | 2000-03-13 | 2012-05-02 | Sony Corporation | Supplying, generating, converting and reading video content |
CN1321533C (en) * | 2003-12-31 | 2007-06-13 | 中国科学院计算技术研究所 | Method of maximum macro block kind and coding block mode combined coding/decoding |
US7664176B2 (en) * | 2004-07-09 | 2010-02-16 | Nokia Corporation | Method and system for entropy decoding for scalable video bit stream |
US7309838B2 (en) * | 2004-07-15 | 2007-12-18 | Oki Electric Industry Co., Ltd. | Multi-layered circuit board assembly with improved thermal dissipation |
BRPI0818444A2 (en) * | 2007-10-12 | 2016-10-11 | Qualcomm Inc | adaptive encoding of video block header information |
JP5251758B2 (en) * | 2009-07-01 | 2013-07-31 | ヤマハ株式会社 | Compression encoding apparatus and image display control apparatus |
US9788019B2 (en) * | 2011-03-09 | 2017-10-10 | Hfi Innovation Inc. | Method and apparatus of transform unit partition with reduced complexity |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5500678A (en) * | 1994-03-18 | 1996-03-19 | At&T Corp. | Optimized scanning of transform coefficients in video coding |
JPH09182083A (en) * | 1995-12-27 | 1997-07-11 | Matsushita Electric Ind Co Ltd | Video image encoding method and decoding method and device therefor |
KR100235347B1 (en) * | 1996-09-19 | 1999-12-15 | 전주범 | Method and apparatus for encoding a video signal of a contour of an object |
JP4049280B2 (en) * | 1996-09-24 | 2008-02-20 | 株式会社ハイニックスセミコンダクター | Grayscale shape information encoding / decoding apparatus and method |
US5748789A (en) * | 1996-10-31 | 1998-05-05 | Microsoft Corporation | Transparent block skipping in object-based video coding systems |
US5790196A (en) * | 1997-02-14 | 1998-08-04 | Mitsubishi Electric Information Technology Center America, Inc. | Adaptive video coding method |
US5973743A (en) * | 1997-12-02 | 1999-10-26 | Daewoo Electronics Co., Ltd. | Mode coding method and apparatus for use in an interlaced shape coder |
US5946043A (en) * | 1997-12-31 | 1999-08-31 | Microsoft Corporation | Video coding using adaptive coding of block parameters for coded/uncoded blocks |
-
1998
- 1998-06-16 US US09/097,740 patent/US6031872A/en not_active Expired - Lifetime
- 1998-06-29 JP JP18250698A patent/JP4086966B2/en not_active Expired - Fee Related
- 1998-07-02 CN CNB981028039A patent/CN1166203C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP4086966B2 (en) | 2008-05-14 |
US6031872A (en) | 2000-02-29 |
JP2000050270A (en) | 2000-02-18 |
CN1241094A (en) | 2000-01-12 |
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